Adria#sh controllers S0/0
Interface Serial0/0
Hardware is PowerQUICC MPC860 with Integrated FT1 CSU/DSU module 
 TX and RX clocks detected.
idb at 0x82BC1AEC, driver data structure at 0x82BC98C0
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0000, Mask [SCCM]=0x001F, Status [SCCS]=0x02
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00367F80, Pending [CIPR]=0x04008C00
Mask   [CIMR]=0x40204000, In-srv  [CISR]=0x00000000
Command register [CR]=0x600
Port A [PADIR]=0x0000, [PAPAR]=0xFFFF
       [PAODR]=0x0000, [PADAT]=0xE1FEa
Port B [PBDIR]=0x03A0F, [PBPAR]=0x0000E
       [PBODR]=0x00000, [PBDAT]=0x3E75D
Port C [PCDIR]=0x00C, [PCPAR]=0x000
       [PCSO]=0x0A0,  [PCDAT]=0xF02, [PCINT]=0x00F
Receive Ring 
        rmd(680126B0): status 9000 length 60C address 3C47F44
        rmd(680126B8): status 9000 length 60C address 3C478C4
        rmd(680126C0): status 9000 length 60C address 3C47244
        rmd(680126C8): status 9000 length 60C address 3C66984
        rmd(680126D0): status 9000 length 60C address 3C66304
        rmd(680126D8): status 9000 length 60C address 3C65C84
        rmd(680126E0): status 9000 length 60C address 3C65604
        rmd(680126E8): status 9000 length 60C address 3C64F84
        rmd(680126F0): status 9000 length 60C address 3C64904
        rmd(680126F8): status 9000 length 60C address 3C64284
        rmd(68012700): status 9000 length 60C address 3C63C04
        rmd(68012708): status 9000 length 60C address 3C63584
        rmd(68012710): status 9000 length 60C address 3C62F04
        rmd(68012718): status 9000 length 60C address 3C62884
        rmd(68012720): status 9000 length 60C address 3C62204
        rmd(68012728): status 9000 length 60C address 3C61B84
        rmd(68012730): status 9000 length 60C address 3C61504
        rmd(68012738): status 9000 length 60C address 3C60E84
        rmd(68012740): status 9000 length 60C address 3C60804
        rmd(68012748): status 9000 length 60C address 3C60184
        rmd(68012750): status 9000 length 60C address 3C5FB04
        rmd(68012758): status 9000 length 60C address 3C5F484
        rmd(68012760): status 9000 length 60C address 3C5EE04
        rmd(68012768): status B000 length 60C address 3C5E784
Transmit Ring 
        tmd(68012770): status 5C00 length 18 address 3C014D4
        tmd(68012778): status 5C00 length 18 address 3C01C54
        tmd(68012780): status 0 length 18 address 0
        tmd(68012788): status 0 length 18 address 0
        tmd(68012790): status 0 length 0 address 0
        tmd(68012798): status 0 length 0 address 0
        tmd(680127A0): status 0 length 0 address 0
        tmd(680127A8): status 0 length 0 address 0
        tmd(680127B0): status 0 length 0 address 0
        tmd(680127B8): status 0 length 0 address 0
        tmd(680127C0): status 0 length 0 address 0
        tmd(680127C8): status 0 length 0 address 0
        tmd(680127D0): status 0 length 0 address 0
        tmd(680127D8): status 0 length 0 address 0
        tmd(680127E0): status 0 length 0 address 0
        tmd(680127E8): status 2000 length 0 address 0

tx_limited=0(16)

SCC GENERAL PARAMETER RAM (at 0x68013C00)
Rx BD Base [RBASE]=0x26B0, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x2770, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x0, BD Ptr [RBPTR]=0x26B0
Tx State [TSTATE]=0x0, BD Ptr [TBPTR]=0x2770

SCC HDLC PARAMETER RAM (at 0x68013C38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=0, Aborts [ABTSC]=0, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1608
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=0
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000


buffer size 1524

PowerQUICC SCC specific errors:
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts
0 aborted short frames